Anti-Misfire Safety Mechanism of Stapler and Stapler

Abstract

The invention provides a mistaken-percussion-proof safety mechanism for an anastomat. The mistaken-percussion-proof safety mechanism for the anastomat comprises a fixed handle and a movable handle, wherein a clamping piece is arranged at the upper part of the movable handle, and a percussion locking mechanism is arranged on the fixed handle at the front side of the movable handle and is matched with the clamping piece; when the movable handle rotates forwards to be closed, the clamping piece is locked by the percussion locking mechanism; an unlocking mechanism for separating the clamping piece from the percussion locking mechanism is also arranged on the fixed handle. The invention also provides an anastomat, which comprises the mistaken-percussion-proof safety mechanism. The movable handle can be locked and cannot automatically reset after being closed for the first time, and the handle is in a closed state, so that the second percussion can be carried out after the handle is unlocked by operating the unlocking mechanism, and thus the failure of operation caused by misjudgment and mistaken percussion of doctors is avoided, and the correctness of operation sequence is ensured; meanwhile, appropriate tissues can be selected to be closed and cut by the doctors through a reset mechanism.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a safety mechanism for preventing misfiring of a stapler and a stapler thereof. Background technique [0002] During laparoscopic and or endoscopic surgery, the procedure is performed through a small incision in the patient or through a narrow cannula inserted into the wound. In traditional or open procedures, the doctor has direct access to the surgical site. The abdominal operating table offers advantages over open surgery due to its reduced patient trauma, shortened patient recovery period, and significantly lower overall costs. To meet the specific needs of endoscopic and intraperitoneal, endoscopic suturing devices have been developed to allow easier access to the surgical site. Typically, these suturing instruments include an articulating tool member supported at the proximal end of the suturing device. The tool component is selectively steerable to enable a phys...

AI Technical Summary

Problems solved by technology

At present, all cutting staplers are open-type cutting staplers. The volume of the instrument is relatively large, and the incision of the patient is relatively large, which is unfavorable for the patient. The recovery time is relatively long, which increases the pain of the patient. False firing will affect the success rate of the operation and increase the pain of the patient

[0003] At present, during the clinical use of laparoscopic staplers, doctors rely entirely on the operating handle to realize the two functions of device closure and cutting. At the same time, the two processes have strict timing requirements. The tissue must be closed before firing can be performed for cutting; However, with the existing staplers, after the tissue is closed, the handle returns to its original position, and the handle can be fired directly. The doctor cannot judge whether the cutting has been completed, causing confusion in the doctor's judgment, and multiple closures and cuttings may occur, resulting in severe surgical complications. Failure; if a doctor who is not familiar with the instrument closes the tissue and then forcibly operates the instrument without opening the safety, it will also cause the operation to fail

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